LiNing Jimmy Butler JB4 ‘Project Rainbow’
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- 1Stand on paperPlace your heel gently against a wall.
- 2Mark and measureMeasure from the heel to your longest toe.
- 3Compare the chartUse the measurement in centimetres to select your size.
Sizing can vary by brand and model. If you are between sizes, review the product-specific chart before ordering.
View full size guideDescription
The Li-Ning JB4 is a men's low top basketball shoe made for players who want a dedicated court option for games, pickup sessions, team practice, and individual workouts. Its low-top construction provides a basketball-specific profile that suits movement-focused play, while the lace-up closure helps create a secure, adjustable fit before warmups or tipoff.
The shoe is presented in the Calm Gray colorway, giving the design a neutral appearance that works naturally with a range of basketball apparel. The round-toe shape adds to its classic basketball shoe profile, and the JB4 model identity makes it an easy choice for players looking for a focused Li-Ning court silhouette.
Use the JB4 for everyday basketball activities where fit and category-specific design matter, including quick changes of direction, defensive slides, hard stops, and full-court transitions. Product performance specifications such as cushioning, traction, materials, and sole construction are not provided, so this description does not make claims about those features. Available sizing includes men's US 6.5 through US 12, with additional EU and UK size references shown in the product data.
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